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olrac12 olrac12
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6 years ago
John's commute time to work during the week follows the normal probability distribution with a mean time of 26.7 minutes and a standard deviation of 5.1 minutes. The interval around the mean that contains 99.7 of the commute times is ________.
 
  A) 21.6, 31.8
  B) 16.5, 36.9
  C) 11.4, 42.0
  D) 6.3, 47.1

Q. 2

A _____ chart is a special type of scatter plot in which the data points in the scatter plot are connected with a line.
 
  A) bar
  B) Pareto
  C) line
  D) pie

Q. 3

According to the Insurance Research Council, 14 of U.S. drivers are uninsured. A random sample of seven drivers was selected. What is the mean of this distribution?
 
  A) 0.98
  B) 1.15
  C) 1.64
  D) 2.12

Q. 4

Two events are considered to be ________ if they cannot occur at the same time during the experiment.
 
  A) mutually exclusive
  B) collectively exhaustive
  C) independent
  D) dependent
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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shannongeeeeshannongeeee
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6 years ago
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olrac12 Author
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#2
6 years ago
Such a godsend, you helped me and my friend big time
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